DORMAN/AUTOGRADE 678-002.1 Starter Mounting Bolt Gm 080358190394 3/8-16 4-5/8 5.0/

( Brand: Dorman/autograde ), ( Manufacturer Part Number: 678-002.1 ), ( Manufacturer Warranty: 1 Year ), ( California Prop 65 Warning: This Product Contains Chemicals Known To The State Of California To Cause Cancer And Birth Defects Or Other Reproductive Harm. ), ( UPC: 080358190394 ), ( Type: Hardware, Fasteners And Fittings )

Review DORMAN/AUTOGRADE Starter Mounting Bolt Type Long 3/8-16 4-5/8 Inch Gm 5.0/

The Dorman/Autograde 678-002.1 starter mounting bolt is a crucial automotive component designed to securely fasten the starter motor to the engine block in various GM 5.0L applications. This replacement part is engineered to meet or exceed the original equipment specifications, ensuring reliable and efficient operation.

This starter mounting bolt comes with a 3/8-16 thread pitch, which is a common size used in many vehicles. The length of this bolt measures 4-5/8 inches, making it suitable for specific applications where the original bolt may have worn out or been damaged. The 5.0 GM designation refers to the engine displacement for which this bolt is intended.

The Dorman/Autograde 678-002.1 starter mounting bolt is made from high-quality materials to ensure superior strength and durability. It is designed to withstand the rigors of automotive use, providing reliable fastening for the starter motor and ensuring a secure connection to the engine block.

Installing this replacement starter mounting bolt is a straightforward process that can be completed with standard hand tools. It is essential to follow the manufacturer's instructions carefully to ensure proper installation and to avoid any potential complications.

In summary, the Dorman/Autograde 678-002.1 starter mounting bolt is a vital automotive replacement part designed for specific GM 5.0L applications. It is engineered to meet or exceed original equipment specifications, ensuring reliable and efficient operation. With a 3/8-16 thread pitch and a length of 4-5/8 inches, this replacement bolt is suitable for securing the starter motor to the engine block in various applications. The high-quality materials used in its construction provide superior strength and durability, making it a reliable and long-lasting solution for maintaining the performance and safety of your vehicle.

The Dorman/Autograde 678-002.1 starter mounting bolt is a replacement part designed for various GM 5.0L engines with a 3/8-16 thread pitch and a length of 4-5/8 inches. Here are some potential pros and cons of purchasing this part:

1. OEM-equivalent: This bolt is designed to be an exact fit for GM engines, ensuring proper function and fit.

2. Cost-effective: Compared to buying an original equipment manufacturer (OEM) part directly from the dealership, this aftermarket part is typically more affordable.

3. Availability: Aftermarket parts like this one are widely available from various retailers and auto parts stores, making it easier to find and purchase.

1. Quality concerns: Some customers have reported receiving low-quality parts that did not meet their expectations. However, this issue is not common and may be isolated to a small number of units.

2. Installation concerns: In some cases, customers have reported difficulty installing the part due to tight tolerances or other fitment issues. Again, this is not a widespread issue, but it's worth noting.

The Dorman/Autograde 678-002.1 starter mounting bolt is a viable option for those looking for a replacement part for their GM 5.0L engine. While there are some potential drawbacks, such as quality concerns and installation difficulties, the benefits of cost-effectiveness and availability make this part a worthwhile consideration for many consumers. Ultimately, the decision to purchase this part depends on individual circumstances and preferences.

If you're in need of a replacement starter mounting bolt for your GM 5.0L engine and are looking for an affordable option, the Dorman/Autograde 678-002.1 part is a good choice. However, it's important to ensure that you're purchasing the correct part number for your specific engine model and application. Additionally, consider checking the reviews and ratings from other customers to help inform your decision. As always, proper installation and use of the part is essential for ensuring its longevity and proper function.

Details:

part #: 6780021 prices

• $11.02-$20.91

specifications toolssupp:

• brand: Dorman/autograde
• mpn: 678-002.1
• manufacturer warranty: 1 Year
• california prop 65 warning: This Product Contains Chemicals Known To The State Of California To Cause Cancer And Birth Defects Or Other Reproductive Harm.
• upc: 080358190394
• type: Hardware, Fasteners And Fittings

seller toolssupp:

• rating: 99.4%
• city: Colmar, Pennsylvania
• # reviews: 129671

offer toolssupp:

• sold: 0
• options: Ship-to-home
• started: January 17, 2026
• availability: In Stock
• quantity: 2

general toolssupp:

• Motors > Automotive Tools Supplies > Other Auto Tools Supplies
• condition: New

payments toolssupp:

• other
• credit card: Diners-club
• wallet: Apple-pay

returns toolssupp:

• time: 30 Days
• policy: Returns Accepted
• paid by: Seller

shipping toolssupp:

• class: Economy, Standard, Expedited, One-day
• service: Economy, Standard, Expedited, Overnight
• transit: 5-10 Days
• cost: $0.00
• type: Fixed

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